发明名称 Pickup device for optical recording medium.
摘要 <p>A pickup device for an optical recording medium comprising a pair of drive magnets and a driven unit having focusing coils and tracking coils mounted on a pair of coil mounting boards for displacing the driven unit against the drive magnets in a direction of focusing and that of tracking by flowing a current therethrough, wherein an electromagnetic force to be generated by at least one of the magnetic coils is varied from that of the other magnetic coil at the opposite side for displacing a driving center of the driven unit. &lt;IMAGE&gt;</p>
申请公布号 EP0536484(A1) 申请公布日期 1993.04.14
申请号 EP19920112284 申请日期 1992.07.17
申请人 PIONEER ELECTRONIC CORPORATION 发明人 KURIHARA, TOSHIHIKO;AKIBA, TAICHI;KOYAMA, MASAYUKI
分类号 G11B7/09 主分类号 G11B7/09
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